Pipe joint or connector



Sept. 2,` 1947. c. c; s. LE cLAlR I 2,426,739 Y vPIPE JOINT OR CONNECTOR Fi]ed Dec. l, 1944 2 Sheets-Sheet l ,3\`f- Aff/GL A 2, H312. ,4

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[maill Cadre' Spranldrg L? Clan' v'entor Sept. 2, 1947. c.`c. s. LE CLAIR PIPE JOINT 0R CONNECTOR yFiled Dec. l, 1944 2 Sheets-Sheet 2 F/oe.

l Camille Cidre \5A Spranlfln LleClQr' v Inventor ttqrney Patented Sept. 2, 'i947 UNITED PIPE JOINT OR CONNECTOR Camille Clare Sprankli-ng Le Clair, London, England Application `December l, 1944, Serial No. '566168 In Great Britain December 24, 1943 Claims.

This invention relates to pipe joints or connectors for use in detachably connecting a liquid or lubricant supply conduit to the flanged head of a liquid or lubricant-receiving fitting cr nipple. The invention is more particularly concerned with nozzles for use in detachably connecting the discharge conduit of a grease gun or other lubricating apparatus to hanged nipples through which the lubricant is fed to the par-ts to be lubricated.

The object of the present invention is to improve, simplify and cheapen the manufacture of such pipe joints, connectors or nozzles, all of which will be referred to hereinafter simply as nozzle`s, largely by avoiding the necessity for machining ports and passages from the solid.

According to the present invention, a nozzle comprises a hollow body part adapted to be connected to the liquid or lubricant discharge vcon `'duit of a liquid or lubricant dispensing apparatus and formed with4 a liquid or lubricant inlet, through which the liquid or lubricant is fed from the said conduit to the interior of the body part, a clip member adapted partially or wholly to embrace the body part and to provide -jaws wherebyv the nozzle may be detachably attached to the liquid or lubricant nipple by a pull-on or push-on movement, an apertured sealing member arranged Vin the interior of the body and 'adapted to make sealing contact with the flanged, apertured head of the liquid or lubricant nipple, and a facing member which serves to retain the said clip member onthe body and to limit the outward movement of the'sealing'member, the flanged head of the liquid or lubricant nipple being engaged in the space between the facing member and the said jaws of the clip member when thenozzle is engaged with the nipple.

The clip member may consist of a vclip `of spring-metal whichis shaped to embrace part Vor all of the nozzle body. The free ends of the sides of the clip are turned inwards so as to form flanges or lugs which are spaced from the bottom of the body and also spaced from each other. They are thus adapted to engage and hold the flanged head of the liquid or lubricant nipple, and are also shaped to act as jaws adapted to engage on and be guided by opposite sides of the nipple body below the flanged head. The said facing member may consist of a flat disc tted in the bottom of the nozzle body and provided with lugs adapted to engage in holes or slots in the said spring clip so as to retain the latter upon the body. The said sealing member is preferably made of flexible material and comprises a 2 cup shaped part-slidab'ly arranged inthe nozzle body above the facing member and a short, IVa-pertured Vniiml'e end which projects downwards through a central hole fori-ned -in the saidlfracing member. 1It is also preferred' toV fit a spring VWithin the hollow nozzle body, so-that' the face of the saidnipple end `'will be Zforced into sealing Contact with 'the head of theiliquid or lubricant nipple partly under fthe iae'tion of -the said spr-ing.

One constructional form 'of thevinvention is shown, -by way of example, -on the laccompanying drawings, whereon:

Fig. 1 is aside elevation *of the nozzle;

Fig. 2 is a section onv-the line lA-'A infFig. 1-;

Fig. 3 is a bottom 'plan View of the nozzle;

Fig. 4 isa llongitudinal sectional view ofthe nozzle body;

Fig. 5 is a section'on'the line BAB `inFig.y 4;

Fig. 6 is a bottom plan view `of the body;

' Fig. 7 is a -plan view 4ofthe facing member;

Fig. 8 is a side View of the spring clip Fig. 9 is=a front View of thefclip; and

Fig. `10 -is a bottom plan view of the clip.

Referring to the drawings:

This constructional form of the Iinvention -is applied'toa nozzle ofthe vhook-on type, and comprises a --housing lio'rmed with a metallicfrectangular body -2 :and with va hollow cylindrical ferrule 3 adapted to be attached to a hose or pipe forming, or adaptedfto beconnectedto, the die charge conduit of agi-ease glun or vother lubricating apparatus (not shown) -either 'directly or through a knuckle or swivel joint. `The b'ody'is formed with a'central 'recess dwhieh is open at the bottom of the body but closed at the top, and'withva rpor`ti5 `which provides communication between the recess and 'the hollow 'ferrule. The botto'mface ofthe body is formed with a circular recess 6, see Figs. 4 to :6, which -is of larger diameter than the central recessll 'iinfthe body and which acts as a seating for a Ifacing member 1,:Fig. '7, in the form'of a 'flat metal disc. The latter is -providedwith two opposed laterally-projecting lugs'B Jan'd 19, and 'the diameter of the-seating '6 in the bodyV is such that it cuts the sides vof the body, thereby providing two spaces lfand `Il in Whichfthelugs fare fitted, the lugs being peened over after the facing member has been assembled. The facing member 1 is also formed with a central hole I2 of less diameter than the central recess 4 in the body.

The nozzle also comprises a spring clip I3, Figs. 8 to 10, which is made from a flat strip of metal bent to embrace the top and tWo sides of the body. The sides I4 and I5 of the clip are the nipple 3| can be engaged therein when the y nozzle is to be connected to the nipple. The edges of the inturned anges MA and IBA of the spring clip are also formed with straightV parts I9 and 20 terminated at one end by parts |9A and 20A curved to a radius slightly larger than that of the body of the nipple just below the flanged head, the centres of curvature of both curved ends being coincident and also coincident with the axis of the nipple. The straight parts I9 and 20 of the two ianges together form a parallel entry slot the width of which is slightly larger than the diameter of the body of the nipple below the flanged head. The leading corners ISB and 20B may for convenience be chamfered as shown. Thus, the inturned anges i dA and |5A of the spring clip iB may be engaged on the nipple below thel fianged head by a hook-on movement, the curved ends IgA and ZeA of said flanges acting as a means for limiting the engaging movement of the nozzle relative to the nipple and the chamfered corners i913 and 20B acting to permit easy engagement. Y

A sealing member 27| isslidably arranged in the central recess d in the body 2 and comprises a cup-shaped ring or washer of rubber, synthetic rubber or equivalent exible material, and an apertured downwardly-projecting end flange or protufberance 22. The latter normallyV projects slightly through the hole I2 in the facing ,member 1 under the action of a coil spring 23, which is arrangedin the central recess i in the nozzle body and acts between the closed end of the recess and the bottom of the cup-shaped part of the sealing washer, the downward movement of the latter, being limited by the Contact of a vas shoulder 2d on the washer with the facing memn ber.

If desired, the sealing member 2i may nor mally be seated in a circular recess formed inV the top of the facing member i concentrically with the hole l2 in Ythe latter. l,

'Ihe spring ,clip i3 may be assembled on the nozzle body 2 with the curvedends 99A and 26A of the recesses in theiianges adjacent to or'remote from the hollow ferrule 3 on the body. Thus, the nozzle may be made up for attachment to the nipple by either push-onf or pull-on motion as preferred.

I claim: Y

1. A nozzle adapted removably to fit'cnt'o the flanged and apertured head of a nipple to pro- Y vide a connection through which liquid or lubri- -cant is fed from the discharge conduit of dispensing apparatus to a receiving surface and comprising, in combination, a hollow body provided.

with an interior passage, a clip embracing the body, an apertured sealing member mounted in the hollow body for engaging the head of said nipple to make .a substantially sealed connection therewith, and a facing member for holding the clip on the body and retaining the sealing memfber, saidclip having end and side portions engaging exterior surfaces of the body and inwardly fprojecting and opposed end anges spaced from the body .and shaped to form jaws for engagement with opposite sides of the nipple adjacent the head'thereof, whereby the nozzle may be removably attached to a nipple by the application of force laterally of the body and longitudinally of said jaws.

2. A nozzle as dened in claim 1 and wherein said inwardly projecting and opposed flanges have curved inner edges of a shape such that they provide stops at one side of the nozzle for effecting properly aligned location of the nozzle relative to a nipple. f

3. A nozzle as defined in claim 1 and wherein said body has a recessed end surface, said clip has slots in the side portions Vthereof and adjacent the recessed end surface of the body',V and said facing member has a mid-portion shaped to fit into the recess in the body and lugs projecting outwardly therefrom through said slots.

4. VA nozzle as defined in claimil wherein said hollow body opens outwardly toward the facing member, said facing member has an opening therethrough of smaller size than the openingl in the body, and said sealing member comprises a substantially cup-shaped element fitting snugly into'the opening in the body and an end protuberance normally projecting outwardly through said opening in the facing member for contacting a nipple to which thev nozzle is applied.

5. A nozzle as defined in claim 1 wherein said hollow bodyiopens outwardly toward the facing member, said facing member has an opening therethrough of smaller size than the opening Y in the body, said sealingrmember comprises a sub-- stantially cup-shaped velement fitting snugly into the opening in the body and an end protuberance normally projecting outwardly through said opening in the Yfacing member for contacting a nipple to which the nozzle is applied, and resilient VmeansV withinV said hollow body for biasing theV sealing member toward the facing member.

CAMILLE CLARE SPRANKLING LE CLAIR.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PAI LNTS France V 1 July 25, 1933 

